<template>
  <div class="goodsinfo-container">

    <transition
      @before-enter="beforeEnter"
      @enter="enter"
      @after-enter="afterEnter">
      <div class="ball" v-show="ballFlag" ref="ball"></div>
    </transition
    >
    

      <!-- 商品轮播图区域 -->
      <div class="mui-card">
        <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <swiper :lunbotuList="lunbotuList" :isfull="false"></swiper>
        </div>
      </div>
      </div>

    <!-- 商品购买区域 -->
    <div class="mui-card">
      <div class="mui-card-header">{{this.goodsInfo.title}}</div>
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <p>
            市场价：<del>￥{{this.goodsInfo.marketPrice}}</del> &nbsp;&nbsp;&nbsp;销售价：<span class="now_price">￥{{this.goodsInfo.sellPrice}}</span>
          </p>
          <p style="display: inline-block;">
            购买数量：<numbox @getcount="getSelectedCount" :max="goodsInfo.stockQuantity"></numbox>
          </p>
          <p>
            <mt-button type="primary" size="small">立即购买</mt-button>
            <mt-button type="danger" size="small" @click="addToShopCar">加入购物车</mt-button>
          </p>
        </div>
      </div>
    </div>

    <!-- 商品参数区域 -->
    <div class="mui-card">
      <div class="mui-card-header">商品参数</div>
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <p>商品货号：SD2932214404</p>
          <p>库存情况：{{this.goodsInfo.stockQuantity}}件</p>
          <p>上架时间：{{this.goodsInfo.addTime | dataFormat('YYYY-MM-DD')}}</p>
        </div>
      </div>
      <div class="mui-card-footer">
        <mt-button type="primary" size="large" plain @click="goDesc(id)">图文介绍</mt-button>
        <mt-button type="danger" size="large" plain @click="goComment(id)">商品评论</mt-button>
      </div>
    </div> 

  </div>
</template>

<script>
import { Toast } from "mint-ui";
import swiper from '../subcomponents/swiper.vue'
import numbox from '../subcomponents/goodsinfo_numbox.vue'
export default {
    data(){
        return{
            id:this.$route.params.id,
            lunbotuList:[],
            goodsInfo:{},
            ballFlag:false,
            selectedCount:1
        }
    },
    created(){
      this.getLunbotu();
      this.getGoodsInfo();
    },
    methods:{
        getGoodsInfo(){
          var that = this
          this.$http.get('/src/data/imgShare/goodsList.json').then(result => {
                if(result.status == 200){
                    result.body.messages.some(function(item){
                      if(item.id == that.id){
                        that.goodsInfo = item;
                        return true;
                      }
                    })
                }else{
                    Toast('获取轮播图失败！');
                }
          })
        },
        getLunbotu(){
            this.$http.get('/src/data/imgShare/lunbotu.json').then(result => {
                if(result.status == 200){
                    this.lunbotuList = result.body;
                }else{
                    Toast('获取轮播图失败！');
                }
            })
        },
        goDesc(id){//商品描述
          this.$router.push({ name:"goodsdesc",params:{id} });
        },
        goComment(id){//商品评价
          this.$router.push({name:"goodscomment",params:{id} });
        },
        addToShopCar(){//添加到购物查车
          this.ballFlag = !this.ballFlag;
          // this.$store.commit("add",this.selectedCount);
          var goodsinfo = {
            id:this.id,
            count:this.selectedCount,
            price:this.goodsInfo.sellPrice,
            title:this.goodsInfo.title,
            src:this.goodsInfo.imagUrl,
            selected:true
          };
          this.$store.commit("addToCar",goodsinfo);
        },
        beforeEnter(el){
          el.style.transform = "translate(0,0)";
        },
        enter(el,done){
          el.offsetWidth;

          //获取小球的位置
          const ballPosition = this.$refs.ball.getBoundingClientRect();
          const badgePosition = document.getElementById("badge").getBoundingClientRect();

          const xDist = badgePosition.left - ballPosition.left;
          const yDist = badgePosition.top - ballPosition.top;


          el.style.transform = `translate(${xDist}px,${yDist}px)`;
          el.style.transition = "all .5s cubic-bezier(.4,-0.3,1,.68)";//cubic-bezier(.4,-0.3,1,.68)
          done();
        },
        afterEnter(el){
          this.ballFlag = !this.ballFlag;
        },
        getSelectedCount(count){
          this.selectedCount = count;
          // console.log('父组件拿到的值为：'+count);
        }
    },
    components:{
      swiper,numbox
    }
};
</script>

<style lang="scss" scoped>
.goodsinfo-container{
    background-color: #eee;
    overflow: hidden;

  .now_price{
    color:red;
    font-size: 16px;
    font-weight: bold;
  }

  .mui-card-footer{
    display: block;
    button{
      margin: 15px 0;
    }
  }
  .ball{
    width:15px; 
    height:15px;
    border-radius: 50%;
    background-color: red;
    position: absolute;
    z-index: 99;
    top:390px;
    left:148px;
  }

}
</style>